Osborne, Mary Pope. <br/><br/>
Polar bears past bedtime / 
by Mary Pope Osborne ; illustrated by Sal Murdocca. 
 - 71 pages :  illustrations ;  20 cm. 
 - Magic tree house ;  bk. 12 .
<br/><br/> "A Stepping Stone book.". 
<br/><br/> Book Links (A.L.A.), November 2005.  L.A. Recommended Foreign Language, February 2000. 
<br/><br/> Their magic tree house takes Jack and Annie to the Arctic, where a polar bear leads them onto very thin ice. 
<br/><br/> 3.3  K-3  570L  Lexile  M  Fountas 
<br/><br/><label>ISBN: </label>0679983414 (lib. bdg.) 0329082078 9780679983415 067988341X 9780679883418 0758779313 9780329082079 9780758779311 9780439528108 
<br/><br/><label>LCCN: </label>97015624 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Jack (Fictitious character : Osborne)--Fiction.<br/>Annie (Fictitious character : Osborne)--Fiction.<br/>Polar bear--Fiction.<br/>Magic--Fiction.<br/>Tree houses--Fiction.
<br/><br/><label>Subjects--Geographic Terms: </label><br/>Arctic regions--Fiction.
<br/><br/><label>LC Class. No.: </label>PZ7.O81167  / Po 1998 
<br/><br/><label>Dewey Class. No.: </label>F OSB